Commentary: Debate skipped key Iran-Israel question Editor's note: Peter Bergen is CNN's national security analyst and a fellow at the New America Foundation in Washington and at New York University's Center on Law on Security. His most recent book is "The Osama bin Laden I Know: An Oral History of al Qaeda's Leader."

Peter Bergen says the next president could face a key decision on Israel and Iran.
(CNN) -- Toward the end of Friday's presidential debate, the conversation turned to Iran and there was a long back-and-forth between the two candidates about what kind of conditions should be set for any discussions with the Iranian government.
But neither addressed what could be the most important foreign policy issue either might face as president: a unilateral strike by Israel against Iranian nuclear facilities... >